Xah Lee writes...
>Here is a problem I have that calls for knowing the internal
algorithm
>used for ParametricPlot. When we do a ParametricPlot, mma
automatically
>figures out which t to use to produce a smooth curve. I need the
list of
>t(s) used. Is there a way to get them?
One simple way to get the points that are used in Plot is to save
them
as the function is evaluated.
pts = {}
Plot[ AppendTo[ pts, t]; Sin[t], {t,0,2}]
for Plot. Or
pts = {}
ParametricPlot[ AppendTo[ pts, t]; {Sin[t], Cos[t]},{t,0,2Pi}]
After either of these pts contains the points that were evaluated by
the Plot command.
Tom Wickham-Jones
WRI